Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico Author Bousquet, Yves Agriculture and Agri-Food Canada, Central Experimental Farm, Ottawa, Ontario, Canada bousquety1@yahoo.com text ZooKeys 2012 2012-11-28 245 1 1722 http://dx.doi.org/10.3897/zookeys.245.3416 journal article http://dx.doi.org/10.3897/zookeys.245.3416 1313-2970-245-1 FFFF52503A0AFF882450FFB66D45FF8E 578462 Genus Agonum Bonelli, 1810 Agonum Bonelli, 1810: Tabula Synoptica. Type species: Carabus marginatus Linnaeus, 1758 designated by Curtis (1827: plate 183). Etymology. Uncertain, possibly from the Greek a (without) and gonia (angle), alluding to the rounded posterior angles of the pronotum (" th [ orax ] ... angulis baseos rotundatis ") of the adult or from the Greek agonos (barren), or from the Greek agon , - os (contest, struggle) [neuter]. Amolyntus Gistel, 1848a: viii. Unnecessary replacement name for Agonum Bonelli, 1810. Agonothorax Motschulsky, 1850a: 67. Unnecessary replacement name for Agonum Bonelli, 1810. Diversity. About 130 species (Liebherr and Schmidt 2004: 202-203) in the Nearctic (72 species, one adventive), Neotropical (15 species in Middle America, all but two shared with North America), Palaearctic (63 species, of which seven are Holarctic), and Afrotropical (three endemic species) Regions. The species are arrayed in four subgenera, following Liebherr and Schmidt (2004): Europhilus , Platynomicrus , Agonum s.str., and Olisares , all represented in North America. All other subgenera of Agonum listed in Lorenz (2005: 411-412) have been excluded by Liebherr and Schmidt (2004: 152) as most of them "are most likely evolutionary affiliates of the highly diverse and taxonomically confused Platynus -" Colpodes " group of genera." About 50 species are left unplaced in Lorenz (2005: 412) and some of them may belong to Agonum . Identification. Liebherr (1994) published a key to all species found in the Western Hemisphere as well as a review of the Middle American species. Lindroth (1966, 1969a) covered all North American species except Agonum anthracinum Dejean, Agonum cyanopis Bates, Agonum elongatulum Dejean, Agonum extimum Liebherr, Agonum muiri Liebherr, Agonum pacificum Casey, and Agonum parextimum Liebherr.